Generation of polarization-entangled photons using type-II doubly periodically poled lithium niobate waveguides
- 13 November 2009
- journal article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 80 (5)
- https://doi.org/10.1103/physreva.80.052321
Abstract
In this paper, we address the issue of the generation of nondegenerate cross-polarization-entangled photon pairs using type-II periodically poled lithium niobate. We show that, by an appropriate engineering of the quasi-phase-matching grating, it is possible to simultaneously satisfy the conditions for two spontaneous parametric down-conversion processes, namely, ordinary pump photon down conversion to either extraordinary signal and ordinary idler paired photons or to ordinary signal and extraordinary idler paired photons. In contrast to single type-II phase matching, these two processes, when enabled together, can lead to the direct production of cross-polarization-entangled states for nondegenerate signal and idler wavelengths. Such a scheme should be of great interest in applications requiring polarization-entangled nondegenerate paired photons with, for instance, one of the entangled photons at an appropriate wavelength being used for local operation or for quantum storage in an atomic ensemble and the other one at the typical wavelength of 1550 nm for propagation through an optical fiber. DOI: http://dx.doi.org/10.1103/PhysRevA.80.052321 Received 24 July 2009Published 13 November 2009© 2009 The American Physical SocietyKeywords
Other Versions
This publication has 24 references indexed in Scilit:
- Integrated optical source of polarization entangled photons at 1310 nmOptics Express, 2009
- Generation of Polarization-Entangled Photons by Type-II Quasi-Phase-Matched Waveguide Nonlinear-Optic DeviceIEEE Photonics Technology Letters, 2007
- Generation of energy-time entangled photon pairs in 15-μm band with periodically poled lithium niobate waveguideOptics Express, 2007
- Bright narrowband source of photon pairs at optical telecommunication wavelengths using a type-II periodically poled lithium niobate waveguideOptics Express, 2007
- A wavelength-tunable fiber-coupled source of narrowband entangled photonsOptics Express, 2007
- Generation of ultrabright tunable polarization entanglement without spatial, spectral, or temporal constraintsPhysical Review A, 2004
- Experimental investigation of the robustness of partially entangled qubits over 11 kmPhysical Review A, 2002
- PPLN waveguide for quantum communicationThe European Physical Journal D, 2002
- Ultrabright source of polarization-entangled photonsPhysical Review A, 1999
- New High-Intensity Source of Polarization-Entangled Photon PairsPhysical Review Letters, 1995